#include<iostream>
using namespace std;
static int array[30] = {99, 22, 51, 63, 72, 61, 20, 88, 40, 21, 63, 30, 11, 18, 99, 12, 93, 16, 7, 53, 64, 9, 28, 84, 34, 96, 52, 82, 51, 77};
int count = 0; 
int main()
{
	for(int i=0;i<30;i++)
	{
		for(int j=i+1;j<30;j++)
		{
			if((array[i]*array[j]) >= 2022)
			{
				count++;
			}
		}
	}
	cout << count;
	return 0;
}
